Track Your Lost or Stolen Mobile Phone with Phone Guardian
You really need not to worry if your mobile phones gets lost or stolen, these days. There are a number of services available, in the form of apps, third party services, GPS, etc to keep the track of your lost or stolen mobile phones. Here is a wonderful app for Nokia users (with Symbian OS). This mobile phone tracking app is known as Phone Guardian.
Phone Guardian is a mobile security anti-thief software for your Series 60 v3 Symbian smartphones. In case your mobile is forgotten or stolen, Phone Guardian will allow you to remotely secure and auto lock your Symbian mobile by sending a lock SMS.
In case you cannot find your mobile phone and feel like loosing it somewhere, you can activate Phone Guardian on it remotely and your phone will get locked. In order to unlock the mobile and get it work again, you need to unlock it by sending an another text message.
On the other hand, Phone Guardian can also send a secure SMS in the background with information that you can use to catch the thief.
Phone Guardian is a wonderful piece of app that every Nokia users should have to remotely lock and unlock mobile phones just by sending a SMS. Once the phone gets locked and Phone Guardian becomes active, you have the authority to lock the mobile, emit the siren and this can be also set to occur automatically when a different SIM card is inserted.

Phone Guardian also sends a text message to a pre-defined number with the details like SIM card number (if the thief inserts a new SIM card, IMEI number and phone number of the SIM card. You can then use that information to locate your lost mobile phone by taking the help of cops or visiting to CellToMap.
The phone lock can not be bypassed by restarting the phone also. The only way to unlock the phone is by sending a specific text message with password details.
Phone Guardian works on Symbian 9.1 Series 60 3rd Edition mobile phones only. The complete list if supported phones can be found here.
Download Phone Guardian trial version from their website.
